java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:35:53,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:35:53,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:35:53,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-09 05:35:53,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-09 05:35:53,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-09 05:35:53,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-09 05:35:53,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-09 05:35:53,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-09 05:35:53,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-09 05:35:53,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-09 05:35:53,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-09 05:35:53,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:35:53,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:35:53,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:35:53,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:35:53,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:35:53,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:35:53,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:35:53,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:35:53,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:35:53,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:35:53,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:35:53,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:35:53,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:35:53,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:35:53,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:35:53,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:35:53,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:35:53,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:35:53,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:35:53,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:35:53,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:35:53,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:35:53,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:35:53,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:35:53,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:35:53,733 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:35:53,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:35:53,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:35:53,734 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:35:53,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:35:53,735 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:35:53,735 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:35:53,736 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:35:53,736 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:35:53,736 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:35:53,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:35:53,737 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:35:53,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:35:53,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:35:53,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:35:53,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:35:53,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:35:53,738 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:35:53,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:35:53,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:35:53,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:35:53,739 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:35:53,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:35:53,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:35:53,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:35:53,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:35:53,740 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:35:53,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:35:53,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:35:53,741 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:35:53,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:35:53,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:35:53,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:35:53,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:35:53,804 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:35:53,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c [2019-09-09 05:35:53,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916f7fbca/d6eb511e723641b1b3866e19df824575/FLAG90a6655a7 [2019-09-09 05:35:54,320 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:35:54,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c [2019-09-09 05:35:54,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916f7fbca/d6eb511e723641b1b3866e19df824575/FLAG90a6655a7 [2019-09-09 05:35:54,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916f7fbca/d6eb511e723641b1b3866e19df824575 [2019-09-09 05:35:54,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:35:54,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:35:54,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:35:54,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:35:54,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:35:54,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:54,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb1ae44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54, skipping insertion in model container [2019-09-09 05:35:54,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:54,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:35:54,733 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:35:54,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:35:54,908 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:35:54,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:35:54,954 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:35:54,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54 WrapperNode [2019-09-09 05:35:54,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:35:54,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:35:54,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:35:54,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:35:55,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... [2019-09-09 05:35:55,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:35:55,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:35:55,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:35:55,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:35:55,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:35:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:35:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:35:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:35:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:35:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:35:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:35:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:35:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:35:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:35:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:35:55,355 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:35:55,355 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-09 05:35:55,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:35:55 BoogieIcfgContainer [2019-09-09 05:35:55,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:35:55,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:35:55,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:35:55,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:35:55,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:35:54" (1/3) ... [2019-09-09 05:35:55,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472e8a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:35:55, skipping insertion in model container [2019-09-09 05:35:55,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:54" (2/3) ... [2019-09-09 05:35:55,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472e8a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:35:55, skipping insertion in model container [2019-09-09 05:35:55,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:35:55" (3/3) ... [2019-09-09 05:35:55,366 INFO L109 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2019-09-09 05:35:55,378 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:35:55,389 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:35:55,407 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:35:55,438 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:35:55,438 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:35:55,438 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:35:55,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:35:55,439 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:35:55,439 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:35:55,439 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:35:55,439 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:35:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-09-09 05:35:55,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-09 05:35:55,467 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:55,468 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:35:55,470 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:55,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:55,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1832694891, now seen corresponding path program 1 times [2019-09-09 05:35:55,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:55,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:55,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:55,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:55,524 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:55,557 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:35:55,557 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:35:55,558 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:35:55,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:55,571 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:35:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-09 05:35:55,594 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-09 05:35:55,596 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-09 05:35:55,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:35:55,596 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-09 05:35:55,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:55,624 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-09 05:35:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:55,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-09 05:35:55,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:35:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:35:55,739 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:35:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:35:55,783 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:55,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-09-09 05:35:55,784 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:55,789 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 05:35:55,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 05:35:55,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-09 05:35:55,806 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2019-09-09 05:35:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:55,923 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2019-09-09 05:35:55,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-09 05:35:55,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-09-09 05:35:55,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:55,935 INFO L225 Difference]: With dead ends: 42 [2019-09-09 05:35:55,936 INFO L226 Difference]: Without dead ends: 29 [2019-09-09 05:35:55,938 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-09 05:35:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-09 05:35:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2019-09-09 05:35:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-09 05:35:55,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-09-09 05:35:55,976 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-09-09 05:35:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:55,977 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-09-09 05:35:55,977 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 05:35:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-09-09 05:35:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-09 05:35:55,978 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:55,978 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:35:55,979 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:55,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1374604441, now seen corresponding path program 1 times [2019-09-09 05:35:55,980 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:55,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:55,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:55,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:55,981 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:55,989 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:35:55,989 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:35:55,990 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:35:56,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:56,009 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:35:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:56,025 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-09-09 05:35:56,027 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [21], [27], [31], [40], [49], [61], [64], [66], [72], [73], [74], [76] [2019-09-09 05:35:56,061 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:35:56,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:35:56,116 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:35:56,118 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 17 root evaluator evaluations with a maximum evaluation depth of 0. Performed 17 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 25 variables. [2019-09-09 05:35:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:56,121 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:35:56,152 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-09 05:35:56,153 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:35:56,154 INFO L420 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-09-09 05:35:56,155 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:35:56,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:56,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:35:56,156 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:56,156 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:35:56,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:35:56,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:35:56,157 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 2 states. [2019-09-09 05:35:56,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:56,158 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-09 05:35:56,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:35:56,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-09-09 05:35:56,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:56,159 INFO L225 Difference]: With dead ends: 6 [2019-09-09 05:35:56,159 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:35:56,160 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:35:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:35:56,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:35:56,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:35:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:35:56,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-09 05:35:56,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:56,161 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:35:56,161 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:35:56,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:35:56,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:35:56,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:35:56 BoogieIcfgContainer [2019-09-09 05:35:56,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:35:56,168 INFO L168 Benchmark]: Toolchain (without parser) took 1468.90 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 87.0 MB in the beginning and 104.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:56,169 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:35:56,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.64 ms. Allocated memory is still 131.1 MB. Free memory was 86.8 MB in the beginning and 76.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:56,171 INFO L168 Benchmark]: Boogie Preprocessor took 116.66 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 76.6 MB in the beginning and 174.9 MB in the end (delta: -98.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:56,172 INFO L168 Benchmark]: RCFGBuilder took 283.52 ms. Allocated memory is still 198.7 MB. Free memory was 174.9 MB in the beginning and 159.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:56,173 INFO L168 Benchmark]: TraceAbstraction took 809.03 ms. Allocated memory is still 198.7 MB. Free memory was 158.9 MB in the beginning and 104.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:56,177 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.64 ms. Allocated memory is still 131.1 MB. Free memory was 86.8 MB in the beginning and 76.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.66 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 76.6 MB in the beginning and 174.9 MB in the end (delta: -98.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 283.52 ms. Allocated memory is still 198.7 MB. Free memory was 174.9 MB in the beginning and 159.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 809.03 ms. Allocated memory is still 198.7 MB. Free memory was 158.9 MB in the beginning and 104.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 23 SDslu, 42 SDs, 0 SdLazy, 27 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.859375 AbsIntWeakeningRatio, 1.125 AbsIntAvgWeakeningVarsNumRemoved, 0.375 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 546 SizeOfPredicates, 4 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...